Geoegb mcgoveen



2 sheets-sheet 1. G..1VI0G OVERN.

COTTON PRESS.

Patented Oet'. 20, 1885.

WI TJV'ESSES N. PETERS. Pham-ummm, w-

(No Model.)

(No Model.) 2 Sheets-Sheet 2. G. MGGOVERN.

COTTON PRESS.

No. 328,798. Patented Oct. 20, 1885.

l www attorney N. PETERS. Pmwmhagnpher, wnhmgmn, u. c.

UNITED STATESl PATENT OFFICE..

GEORGE MCGOVERN, OF RICHMOND, VIRGINIA.

COTTON-PRESS.

SPECIFICATION forming part of Letters Patent No. 328,798, dated October20, 1885. Application filed September 5, 1.885. Serial No. 176,252. (Nomodel.)

.To all whom it may concern.-

Be it known that I, GEORGE McGovERN, a citizen of the United States,residing at Richmond, in the county of Henrico and State of Virginia,have invented certain new and useful Improvements in Ootton-Compresses;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which 1t appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specication.

y My invention has relation to certain new and useful improvements incotton compresses; and the object of the invention is to provide a meansfor simply and cheaply compressing bales of cotton, to facilitate theirtransportation from the planter to the factory; and the novelty consistsin the construction of the same, as will be hereinafter more fullydescribed.

In the accompanying drawings the same letters of reference indicate thesame parts of the invention.

Figure lis a perspective view of my cotton-compress. Fig. 2 is a frontelevation, partly in section, and Fig. 3 is an end elevation of thesame.

A is the bed-plate, and rigidly secured to it are four columns orstanchions, B B B B,

which support the middle cross-head, C, and

the auxiliary head D, the former head, O, being secured to saidstanchions by nuts'c and the latter head, D, by nuts d.

E is a central brace cast integral with the head D, and extendingdownward to support the upward strain on the central part of the lowerhead, C.

F is the follower, provided with corner guide-brackets, e, which insuresa true vercl motion thereof on the stanchions B B GGare two screws,rigidly secured by their lianges g g to the follower, so as to move withit. These screws pass upwardlythrough two screw-worm nuts, H H, andfreely through suitable openings in the upper head, D,which act asguides for the upper end of the said screws. One of the screws,G,isprovided with a right-hand thread, and the other one, G', a left-handthread, and the threads in the wormnuts correspond to the threads ontheir respective screws. These worm-nuts are provided with threads I Ion their periphery, which mesh with each other at K, and alsorespectively mesh with the worms L L on the shaft M, which is providedwith a pulley, N, located at either or both ends of said shaft, the wormL being a righthand screw to correspond with the thread on the worm-nutH, and the worm L being a left-hand one to cor respond with the threadon the other wormnut,H. From this it will be clcarlyseen that as theshaft M is rotated the worm-nuts H H will be simultaneously operated,and theyin turn operate the screws G G up or down, according tothedirection of rotation of the said shaft.

A very important feature of this movement is the meshing of the teeth ofthe worm-nuts H Hf with each other, as by this arrangement theend-thrust of the shaft M is entirely done away with, and what wouldotherwise be an immense loss of power is taken up and utilized by themeshing of said worm-nuts. These worm-nuts H H are secured in place, soas to revolve freely in the middle cross-head, C, by means of collars hh; and O is a circular beveled steel rail set in a recess in the upperside of each of the worm-nuts, and a similar rail, O, is secured in asimilar recess in the under side of the cross-head O, while betweenthese rails is a series of conical steel antifriction rollers, P, whichtake up the pressure of the worm-nuts while the screws are being forceddownward to compress a bale.

l. In a cotton-compress, a pair of wormnuts provided with teeth on theirperiphery, which mesh with each other and with worms on a common shaft,in combination with a pair of compression-screws operated by said shaftand worm-nuts, as set forth.

2. The combination, with a right and a left hand screw, of a pair ofcorrespondinglythreaded worm nuts, the teeth on the periphery of onemeshing with the teeth on the periphery of the other, and means forsimul- Intstmony whereof I affix my signature in 1 lpyesenoefof twowitnesses.

GEORGE MCGOVERN.

Witnesses:

E. H. BRADFORD, HH. J. ENNIs.

